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Species of worm-like animal From Wikipedia, the free encyclopedia
Yilingia spiciformis was a worm-like animal that lived between approximately 551 million and 539 million years ago in the Ediacaran period, around 10 million years before the Cambrian explosion. A fossil of this creature and its tracks were discovered in 2019 in Southern China.[1] It was a segmented bilaterian, conceivably related to panarthropods or annelids. It is a rare example of a complex Ediacaran animal that is similar to animals that existed since the Cambrian, hence suggesting that perhaps the Cambrian explosion was less sudden than often assumed.
Yilingia Temporal range: | |
---|---|
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Clade: | Bilateria |
(unranked): | incertae sedis |
Genus: | †Yilingia |
Species: | †Y. spiciformis |
Binomial name | |
†Yilingia spiciformis Chen et al. 2019 | |
Fossils of around 35 specimens were found. The creature appears to be metameric, with each metamere having three lobes, like later trilobites.[2] The fossils make Yilingia one of the oldest known animals to be capable of making decisions and moving on its own.[3]
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